Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X450-20S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X450-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø16mm bore and 450mm stroke, M5×0.8 air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ16 mm
- Stroke450 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- CushionFixed anti-impact bumper pads
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X450-20S
When the stroke must reach 450 mm but panel space rules out a bulkier body, this MAJ16X450-20S fills the gap: a made-to-order stroke (the bore 16 standard tops out at 300 mm) with a 20 mm extend-trim window on the external stop screw. At 0.5 MPa it delivers 100.5 N push and 86.4 N pull; 0.7 MPa raises the push to 140.7 N, and 20.5 kgf is the theoretical peak at 1.0 MPa. Its riveted stainless barrel shrugs off mild corrosion and washdown better than painted or bare-aluminium minis.
Size the job at about 60 N of true working force at 0.5 MPa - vertically, roughly 5 kg once the 10 kg figure is halved for a 2:1 margin. A fixed bumper pad softens stroke ends by deceleration alone; it is not the adjustable cushion you find on the MAC range. The magnet comes standard in the piston, so CMSG / DMSG / EMSG switches snap onto the barrel with no special order.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X450-20S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X450-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 450 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed anti-impact bumper pads |
| Max standard stroke | Up to 300 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
Theoretical Output Force (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 86 N |
| 0.7 MPa | 141 N | 121 N |
| Max (@1.0 MPa) | 21 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X450-20S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×450 | Stroke length in mm. |
| -20 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X450-20S Is Used
Gantry stop-flag positioner
Sets a mechanical stop flag anywhere along a 450 mm gantry axis, with the 20 mm trim window fine-tuning flag position after commissioning.
Hopper slide gate
Opens and closes a slide gate under a small granular-feed hopper; the stainless body resists the damp, dusty air that swells painted-steel alternatives.
Wash-tank basket dipper
Lowers wire baskets of about 5 kg into a parts-wash tank at cycle start, using roughly half the 10 kg vertical-lift figure as a 2:1 safety margin.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X450-20S the Right Cylinder?
450 mm is beyond the 300 mm standard stroke for bore 16, so this is a made-to-order build; confirm the exact working stroke when ordering. The push of 100.5 N at 0.5 MPa is the smallest MA class - bore 20 raises it to 157 N if the load grows. Keep side load off the long 6 mm rod with an external guide, and remember the 20 mm trim screw fixes an extend position only; it will not hold the load if air is lost. FA and LB mounts, plus I and Y rod knuckles, complete the mounting set.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Bumper models: keep speed within the rated range.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X450-20S FAQ
For the 16 mm bore: 100.5 N push and 86.4 N pull at 0.5 MPa; 140.7 N push and 120.9 N pull at 0.7 MPa; 20.5 kgf theoretical maximum at 1.0 MPa. Pressure range is 0.15-1.0 MPa (22-145 psi) and speed 30-800 mm/s.
No. The 20 mm adjuster is a mechanical end stop for the extend stroke, not a mid-stroke or load-holding lock - if supply pressure drops the piston will drift. For clamping or holding duty, add a piloted valve or an external mechanical clamp.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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